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Ubuntu 12.04 (Original Ubuntu version was 8.xx)

I have a message on the top bar that an error occurred and to run Package Manager.

I received the following message after running package manager:

E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages

I ran:

sudo apt-get update && sudo apt-get upgrade

The following packages have been kept back:

evolution-common evolution-indicator evolution-plugins libnspr4 libnspr4:i386 libnspr4-0d
0 upgraded, 0 newly installed, 0 to remove and 6 not upgraded.

Newbie not sure what to do next.

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2 Answers

actually held packages can be get back with dist-upgrade

open your terminal and type as

sudo apt-get install -f

then try again .

all the best.

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desktop:~$ sudo apt-get dist-upgradeReading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Failed The following packages have unmet dependencies: libnspr4 : Breaks: evolution-plugins (< 3.2.0-0ubuntu2) but 2.32.2-0ubuntu7 is to be installed libnspr4:i386 : Breaks: evolution-plugins (< 3.2.0-0ubuntu2) but 2.32.2-0ubuntu7 is to be installed E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages. –  SLM Aug 15 '12 at 17:17
    
no change after running: sudo apt-get dist-upgrade –  SLM Aug 15 '12 at 17:20
    
@SLM answer edited . –  raaz Aug 15 '12 at 17:21
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I solved a problem involving a subset of the packages mentioned by the OP as follows:

sudo apt-get -f install
sudo apt-get remove evolution-plugins
sudo apt-get upgrade
sudo apt-get dist-upgrade

Note sure if all of these steps were essential...

Source: https://bugs.launchpad.net/ubuntu/+source/nspr/+bug/1036794

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